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School me about finishing over the top of CA glue repairs

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Forum topic by HarveyDunn posted 03-31-2014 03:34 AM 1160 views 0 times favorited 6 replies Add to Favorites Watch
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HarveyDunn

328 posts in 1198 days


03-31-2014 03:34 AM

I’m just completed my first project wherein I used CA glue to repair some cracks and other other problems that arose. Luckily, this is going to be a rustic-look item. But as I’m waiting for it to dry, I’m wondering if anyone can fill me in on how that CA glue patches are going to behave when I’m doing the finish. Will they sand? I’m pretty sure I read somewhere that they won’t take stain or dye. What happens if you use a clear finish like Watco over them? How about paint?


6 replies so far

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gfadvm

14940 posts in 2157 days


#1 posted 04-01-2014 12:54 AM

I’ve sanded CA fixes and top coated with shellac, lacquer, and poly with no problems.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Finisherman

227 posts in 1316 days


#2 posted 04-01-2014 04:25 PM

Given that CA glues are similar to moisture curing polyurethane, which is used as a finish in its own right, I don’t think that you should have any trouble putting a film finish like lacquer or varnish over them. You’re likely correct in your belief that the CA glue spots won’t accept a stain or dye, although, if the dye contains acetone, it might colour the CA glue to some degree. I’d also stay away from a penetrating finish like Danish oil, which I assume is what you mean when you mention Watco. The oil finish won’t be able to penetrate the wood which has been sealed by the CA glue.

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HarveyDunn

328 posts in 1198 days


#3 posted 04-01-2014 05:58 PM

Finisherman, yes I did mean Danish Oil when I said “Watco”. I’m pretty new to this, and the only clear finish I’ve ever done is a bit of Danish Oil then some nitro lacquer from a spray can over it as a top coat.

If I should avoid the Danish Oil in this case, what should I use in its place? I gather that your answer might be “varnish”, but I find that to be such a broad category I’m not sure I know what you mean.

Then can I use the nitro lacquer over the top of it?

I’m looking for something that will dry fast and that I can buy at the BORG!

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Finisherman

227 posts in 1316 days


#4 posted 04-01-2014 09:48 PM

The aerosol lacquer would work well here. You can use it by itself, without the Danish oil. The lacquer is quick drying and is available at the Home Depot, unless of course, you live in California. Deft makes a good aerosol lacquer, as does Watco.

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HarveyDunn

328 posts in 1198 days


#5 posted 04-01-2014 11:31 PM

Yes, the Deft is what I have. I thought the wood needed a coat of something or other before the lacquer when on. Is that not the case?

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Finisherman

227 posts in 1316 days


#6 posted 04-02-2014 02:16 AM

No, not at all. I often use lacquer by itself. It is a “self-sealing” product.

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